This kit has the added boiling plating armor on the front and the Panther armor on the mantle with the counterweight bat wings on the side. The kit built pretty well with no major problems. I like that two sets of tracks are included- one a single rubber band type or plastic individual track links. I went with the individual inks and they took about two hours to build, but look so much better then the rubber band ones. There are photo etched parts for the storage racks. The barrel is in two halves, but the seems was not bad after some sanding.